Silica, with 10 mum diameter particles and 8.7 nm pore size, was zirconized (to 16.2% ZrO_2) by reaction with zirconium butoxide, then functionalized by sorption of PMODS (poly(methyloctadecyl-siloxane)) using an evaporation procedure with hexane as solvent. Infrared spectroscopy was used to examine the surface concentration of silanol groups. The thermal stability of the material was verified by thermogravimetric analysis. The C-18 stationary phase was used to pack 150 x 3.9 mm i.d. columns, which exhibited satisfactory efficiencies (25000-30000 plates/m). The values of asymmetry factor, alpha, k and Rs were within acceptable limits.
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机译：通过与丁醇锆反应，将直径为10微米的颗粒且孔径为8.7 nm的二氧化硅进行锆化处理（至16.2％ZrO_2），然后使用己烷作为溶剂的蒸发方法，通过吸附PMODS（聚（甲基十八烷基-硅氧烷））进行官能化。红外光谱用于检查硅烷醇基团的表面浓度。通过热重分析验证了材料的热稳定性。 C-18固定相用于包装150 x 3.9 mm i.d.色谱柱，显示出令人满意的效率（25000-30000板/米）。不对称因子，α，k和Rs的值在可接受的范围内。
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